US3791071A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Motor vehicle construction
Assignee: Robert Bosch GmbH
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Filing: 1972-06-26
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Granted: 1974-02-12
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Expires: 1992-06-26
Abstract
Abstract A rotatable shaft can be turned to shift a window or similar component of a motor vehicle. A coupling is provided for turning the shaft and includes one coupling section which is fixedly mounted on and turns with the shaft and another coupling section which surrounds the shaft and is adapted to be driven by a motor. A biasing spring urges the shaft axially of itself so that the section of the coupling on the shaft engages the section which is driven by the motor. To operate the arrangement in the event that the motor should fail, a manual crank is provided which can be engaged with a free end portion of the shaft, and an arrangement is provided which, when such engagement is effected, will displace the shaft axially in a sense separating the two coupling sections so that it is not necessary to turn against the resistance of the motor.
Inventors
- 👤 B Niklaus
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 07:10
CPC Classifications
F; F16; F16H; F16H37/00; E; E05; E05F; E05F15/00; E05F15/60; E05F15/603; E05F15/665; E05F15/689; E05F15/692; E05Y; E05Y2900/00; E05Y2900/50; E05Y2900/53; E05Y2900/55; F16H2700/00; F16H2700/02
Claims Analysis
Total Claims: 12
Claim 1
Independent Claim
175 words
In a motor vehicle, an arrangement for displacing shiftable windows and analogous components, comprising a rotatable shaft adapted to displace the shiftable component when rotated; coupling means for coupling said shaft with a motor drive, including a first coupling section fixed on said shaft for rotation therewith, and a motor-driven second coupling section, said shaft and said first coupling section being jointly shiftable axially of said shaft into and out of a position in which said first coupling section is in coupling engagement with said second coupling section; biasing means normally urging said coupling means into said position; manual crank means for rotating said shaft in the event of motor drive malfunction; cooperating screw threads on said crank means and said shaft so that the former can be releasably threaded onto the latter; and shifting means for shifting said shaft out of said position in automatic response to threading of said crank means onto said shaft so as to effect disengagement of said coupling sections preliminary to rotation of said shaft by said crank means.
Claim 2
Dependent Claim
175 words
In a motor vehicle, an arrangement for displacing shiftable windows and analogous components, comprising a rotatable shaft adapted to displace the shiftable component when rotated; coupling means for coupling said shaft with a motor drive, including a first coupling section fixed on said shaft for rotation therewith, and a motor-driven second coupling section, said shaft and said first coupling section being jointly shiftable axially of said shaft into and out of a position in which said first coupling section is in coupling engagement with said second coupling section; biasing means normally urging said coupling means into said position; manual crank means for rotating said shaft in the event of motor drive malfunction; cooperating screw threads on said crank means and said shaft so that the former can be releasably threaded onto the latter; and shifting means for shifting said shaft out of said position in automatic response to threading of said crank means onto said shaft so as to effect disengagement of said coupling sections preliminary to rotation of said shaft by said crank means.
Claim 3
Dependent Claim
59 words
An arrangement as defined in claim 1, said shaft having a free end portion, and said crank means having a tapped bore in which said end portion is receivable; and said shifting means comprising a stationary element against which said crank means abuts in axial direction of said shaft when said end portion is received in said tapped bore.
Claim 4
Dependent Claim
26 words
An arrangement as defined in claim 2; further comprising an engaging portion in said tapped bore for engaging said shaft and retaining said crank means thereon.
Claim 5
Dependent Claim
42 words
An arrangement as defined in claim 3, said end portion having a free end face provided with a recess; and said engaging portion comprising a bolt inserted in a hub of said crank means and including a rib receivable in said recess.
Claim 6
Dependent Claim
48 words
An arrangement as defined in claim 4, said engaging portion being freely turnable in said hub when said crank means is turned in one direction for threading said end portion into said bore, but being prevented from turning when said crank means is turned in the opposite direction.
Claim 7
Dependent Claim
30 words
An arrangement as defined in claim 5, and further comprising pawl means for preventing said turning of said engaging portion when said crank means is turned in said opposite Direction.
Claim 8
Dependent Claim
29 words
An arrangement as defined in claim 6, said pawl means including a pawl member, and a biasing element urging said pawl member into releasable engagement with said engaging portion.
Claim 9
Dependent Claim
23 words
An arrangement as defined in claim 1, said second coupling section including a worm wheel arranged to interengage with said first coupling section.
Claim 10
Dependent Claim
39 words
An arrangement as defined in claim 8, wherein one of said coupling sections is provided with recesses, and the other coupling section is provided with projections which extend into said recesses when said coupling sections are in coupling engagement.
Claim 11
Dependent Claim
14 words
An arrangement as defined in claim 1, said biasing means comprising spring biasing means.
Claim 12
Dependent Claim
26 words
An arrangement as defined in claim 10; further comprising a stationary component; and wherein said spring biasing means bears upon said stationary component and said shaft.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1977-02-11 | 1977-08-13 | 1978-02-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1981-02-11 | 1981-08-13 | 1982-02-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1985-02-11 | 1985-08-13 | 1986-02-12 | $7700.00 | Window Closed / Lapsed |